Finding the Fourth Proportional to 2,790.06, 4,184.33 and 940.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,790.06 : 4,184.33 = 940.78 : x
2. Step 2: Convert to fraction form
   2,790.06/4,184.33 = 940.78/x
3. Step 3: Cross multiply
   2,790.06x = 4,184.33 × 940.78
4. Step 4: Simplify right side
   2,790.06x = 3,936,534.50
5. Step 5: Solve for x
   x = 3,936,534.50/2,790.06
6. Step 6: Final answer
   x = 1,410.91